dstegr(3) on Linux
The text fc5e2afd0395, as Debian 3.1 (Sarge) shipped it.
compute selected eigenvalues and, optionally, eigenvectors of a real symmetric tridiagonal matrix T
The text fc5e2afd0395, as Debian 3.1 (Sarge) shipped it.
compute selected eigenvalues and, optionally, eigenvectors of a real symmetric tridiagonal matrix T